Fass Fuel System
Discussion in 'Trucks [ Eighteen Wheelers ]' started by pheebo, Mar 13, 2010.
Page 19 of 19
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Codynidaho, MACK E-6 and Oxbow Thank this.
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Also, I sent the truck into the shop for some water pump work and had them test the fuel pressure. Old pump is pushing 75# at idle and 105 revved up. So there's no restrictions, I'm just getting used to truck. Getting great mpg too.jamespmack and Oxbow Thank this. -
Oxbow Thanks this.
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I'll try bypassing it and see what it does. It's just hard to believe that would restrict if the fass pump is keeping a constant pressure on the engine pump on the low side. Do you know what pressure that electric pushes to the engine pump before cycling it back to the tanks? If not, I'll have to call and see. -
Oxbow Thanks this.
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Oxbow Thanks this.
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Btw. My vacuum gauge doesn't move when I have a load on and working the engine. Wouldn't it move a little if that original filter is restricting? Assuming 18psi that the fass pump provides more than enough pressure to push through a filter. Just thinking out loud.
spsauerland Thanks this. -
Oxbow Thanks this.
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Thoughts on FASS or Airdog on a new cummins X-15? or should wait a certain milage b4 install??
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